Improved hbat-hetaimihx  pail



.TU HN C. lRAlN, OF BROGKLYN, NEW YORK.

Letters Patent No. 86,727,

dated February 9, 1869.

IMPEOVED HEAT-RETAINING- FAIL.

The Schedule referx'e to in these Letters Patent and making part of thesame.

To Il wtmn it 'may concern.-

Be it known that LJonN C. BRAIN, of Brooklyn, in `he county ot' Kings,and Stute of New York, have invented zt new mid useful improvement inHeat-Retaining` Pztils; :nld do herehy'deelnre that the following is ut'ull1 elem, :nld exact description thereof, which will elnibleothersskilledin the nrt to in nke. und use'the sanne, reference being had tothe neeonip-.tnyng drawing, forming pit-rt. oiA this speciticziton.

This invention relates to :in improvement in pails, 4such as arecihyloyed by lnhoreis for rzx-rrying 'their dinners; and

lt consists in preventing the radiation of lient from the pnii, byprotecting or surrounding it with :t noncondneting medium, so that theheat imparted to the contents of such pail may be retained for manyhours, :is will be. hereinafter lescrihelh The 'n.-ccoinpmiyinprdra-wing represents n vertice-l snction ot n pnil construct nl accordingto my invention.

ln carrying ont my invention, I forni the pail with double walls, unddouble bottoni und top, or cover, and till the space between the wnllswith zi coinliinzition ot' feltnnd paper, or with felt, and withnsuhstnnce known as paper felt, and with one or more loyers ot papercombined therewith.

A is the outer wall, which may be wade of tin or other nietl.

B represents the inner wall, which muy be composed of any suitablelmaterial.

' The bottom, G, and the top,

D, are formed and pro tectedn the Isame manner,

E is :nl inner cover to the pail.

F represents the interior of the pnih The two outer lnyersoi' thenon-conducting medium, represented by g, are compose-cl of'pnper felt,that is, paper-pulp, combined with Wool libre, the 4materia-ls beingcombined by felting in the ordinary inn-nner.

lz represents n thick layer of wool feit.

The next ,two layers are paper felt, the sanne :is g, and are marked i,While the inner layer, j, represented by the yellow line, is ordinarypeper :L poil, thus surrounded and protected, will reta-in the lient ofthe contents for many hours, (eight or ten,) when the contents, :isliquids or other articles, have been raised to the boiling-point.

I do not confine myself to the particular :wrangeinent o' the loyers ofthe non-conducting material, no1- to the pnrticular number of eachlayer. The principal object I have in view is to provide a pail, forlaboring nien` which will enable them to partakeof a warm dinner in thewood,- iield, or elsewhere.

Having thus described my invention,

l claim as new, Patent- As n new :nticle oi nninnicture, a dinner-pail,surrounded by different layers of felt or felt paper, g if, thewool-felt filling h, and the' paper layer i,as and for the purposeherein shown and described.

JNO. C. BRAIN.

XV tnesses W. H. theorieen, A. W. known.

amd desire to secure by Letters

